IoT - Freezer / Fridge monitoring

One or more DS18B20 Thermal Probe(s) to track the temperature in the fridge / freezer.

Board attached to the underside of a blank plate.

Plate attached to a Wiremold surface box.

(Probably didn't need the Extra Deep box...)

Minor issue noted: Mounting the ESP-Everything! centred on the plate kinda makes the USB port useless. But, there's about 10mm clearance either side. I should be OK just moving the board over.

Yup... Moving it over 10mm solves the issue. (I'll have to put some updated pics up.)

Once the probes arrive, it'll be time to solder up the board, stick it next to the freezer & beer fridge.

Then testing begins.

File:ColdStuff UI initial.jpg

First test with 2 probes

No calibration so far...